import java.io.IOException;

public final class Person extends BaseClass {
    private String name;
    private final int age = 30;
    protected String address;
    public String message;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    protected String getAddress() {
        return address;
    }

    private void silentMethod() throws IOException, NullPointerException {
        System.out.println("这是悄悄话");
    }

    public Person() {
    }

    private Person(String name) {
        this.name = name;
    }

    protected Person(String name, String address, String message) {
        this.name = name;
        this.address = address;
        this.message = message;
    }
    @Override
    public  String toString(){
        return "{name:"+name+",age:"+age+",address:"+address+",message:"+message+"}";
    }
}
